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Test your basic knowledge |
DSST Physical Sciences Principles
Start Test
Study First
Subjects
:
dsst
,
science
Instructions:
Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The work that a heat engine is able to accomplish is ideally equivalent to the
Difference in the sped of light in water vs. air
Difference between the heat supplied and the heat exhausted
Newtons second principle of Universal Gravitation
5 m/s
2. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Remains unchanged
263 degrees kelvin
Waste heat for secondary uses
Increasing speed and constant acceleration
3. The gravitational force - two masses are directly proportional to the mass of each object
Difference in the sped of light in water vs. air
Newtons second principle of Universal Gravitation
Sulfur
Heat of fusion
4. In a generator - the flow of electrons (current) is created by...
263 degrees kelvin
Decreased
Movement
Newtons first principle of Universal Gravitation
5. If a charging elephant has kinetic energy - it must also have...
Twice the work
Momentum
Difference between the heat supplied and the heat exhausted
Near a maximum
6. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
Decreased
Newtons second principle of Universal Gravitation
12 miles per hour
Momentum
7. In burning coal - what contaminant is of major concern as a pollutant...
Sulfur
Universal
Second principle of Centripetal force
Remains unchanged
8. At a given speed - the centripetal force - the smaller the circle.
Near a maximum
Third principle of Centripetal force
Increasing speed and constant acceleration
263 degrees kelvin
9. The theoretical production curve of oil indicates oil production is...
Total internal energy of an object
Decreased
Near a maximum
263 degrees kelvin
10. Electrical energy can be converted to...
Mechanical - chemical - and radiant energy
Increasing speed and constant acceleration
Difference between the heat supplied and the heat exhausted
Might stay the same
11. Entropy refers to...
Disorder
12 miles per hour
Total internal energy of an object
Newtons third principle of Universal Gravitation
12. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Newtons second principle of Universal Gravitation
Sulfur
Means less power is transmitted
Remains unchanged
13. Which is not one of the fundamental forces of nature...
Universal
Waves and particles
Means less power is transmitted
Newtons third principle of Universal Gravitation
14. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
First principle of Centripetal force
Total internal energy of an object
Increases the energy
5 m/s
15. The ozone hole results from...
Universal
Halogen radicals interfering in ozone synthesis
Mechanical - chemical - and radiant energy
First principle of Centripetal force
16. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Waste heat for secondary uses
Might stay the same
Remains unchanged
Less on the moon
17. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Universal
Difference in the sped of light in water vs. air
Heat of fusion
Newtons third principle of Universal Gravitation
18. The weight of one kilogram of iron on earth is...
Waste heat for secondary uses
Less on the moon
Difference between the heat supplied and the heat exhausted
Might stay the same
19. From the 50's and to the 70's - the pH of rain in the northeast had..
Sulfur
Halogen radicals interfering in ozone synthesis
Decreased
Remains unchanged
20. Increasing the frequency of light
Universal
Increases the energy
Sulfur
Newtons third principle of Universal Gravitation
21. Heat is the...
Universal
Total internal energy of an object
Remains unchanged
263 degrees kelvin
22. The reason that a spear fisherman cannot see where the fish is actually located is...
Means less power is transmitted
Third principle of Centripetal force
Momentum
Difference in the sped of light in water vs. air
23. Raising an auto in a service station requires work. Raising it twice as high requires...
12 miles per hour
Newtons second principle of Universal Gravitation
Twice the work
Decreased
24. A temperature of -10 degrees celsius is equivalent to...
263 degrees kelvin
Waves and particles
Waste heat for secondary uses
Might stay the same
25. When you add heat to a substance - its temperature...
Total internal energy of an object
Heat of fusion
Might stay the same
Twice the work
26. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Newtons third principle of Universal Gravitation
Increasing speed and constant acceleration
Sulfur
Waves and particles
27. All objects with mass are attracted to another by the gravitational force
Remains unchanged
Newtons first principle of Universal Gravitation
Universal
Mechanical - chemical - and radiant energy
28. Electromagnetic radiation can be viewed as...
Waves and particles
Less on the moon
Decreased
Difference in the sped of light in water vs. air
29. Circular motion requires centripetal force
Less on the moon
Heat of fusion
First principle of Centripetal force
Near a maximum
30. The larger the centripetal force - the faster an object travels in a circle of a given size
Heat of fusion
Newtons third principle of Universal Gravitation
Second principle of Centripetal force
Mechanical - chemical - and radiant energy
31. cogeneration uses...
Waste heat for secondary uses
Increasing speed and constant acceleration
Difference in the sped of light in water vs. air
Newtons third principle of Universal Gravitation